Simens s7 - 300 plc is a kind of programmable logic controller with a small scale , which is powerful in function and fast so that it can meet the requirements of analogy control with real time 西门子s7 - 300系列plc是小型化的可编程序控制器,但是功能强大,速度快,可以满足模拟量实时控制的需要。
Programmable logic controller ( plc ) was developed in 60 ' s 20th , and was the ideal control equipment in industry automatization as which known the first of three main pillar of advanced country 可编程序控制器,简称plc ,是20世纪60年代发展起来的被国外称为“先进国家三大支柱”之首的工业自动化理想控制装置。
A more suitable control program was developed with plc ( programmable logic controller ) . the water source heat pump computer assistant design software was compiled to reduce time - period of product developments 在理论计算和设备选型的基础之上,编制了水源热泵机组计算机辅助设计软件,对建立产品设计理论和缩短开发周期具有一定的参考价值。
As a very important basic equipment , programmable logic controller ( plc ) is called one of the three major pillars in automation industry . plc plays more and more important role in the field of industry manufacture 可编程控制器作为目前工业自动化的重要基础设备,被称为“工业自动化三大支柱性产业之一” ,在各工业生产领域发挥着愈来愈大的作用。
Thirdly the article introduces situation of longdong hydro plant and its program design , then introduces the most featured hardware - - programmable logic controller ( plc ) , which satisfied the users with its high reliability and flexibility 文中还介绍了龙洞电厂的实际情况和据此所作的规划设计,介绍了本系统中最具特色最为核心的硬件基础? ?可编程序控制器。
Finally , on the basis of detailed analysis of the control characteristics for xi " an university of architecture and technology " s research on concrete pump , control system based on the programmable logic controllers is designed 最后,在深入分析我校研究的混凝土泵控制系统特点的基础上,应用西门子与7 - 200系列可编程控制器( plc ) ,设计了基于plc的电器控制系统。
Completed the initialization of can parameter for the communication card and conversion card by compile setting program . designed communication program to actualize the supervision and control of programmable logic controllers by upper computer 使用专用can接口库函数编写设置程序完成了对接口卡、 can485转换卡的can参数(如滤波方式、通讯模式、验收码和屏蔽码等)的初始化设定。
This paper emphasizes system constitutes , programme methods , hadware composing , communication networks of simatic s7 - 300 plc and their applications . the s7 - 300 series is a line of micro - programmable logic controllers that can control a variety of automation applications 本文着重讨论了铺排船控制系统中使用的simatics7 - 300plc的系统结构、编程方式、硬件组成、通讯组网以及它们的应用。
The plc ( programmable logic controller ) has the advantages such as easily programming , good generality , high reliability , simple configuration of the control system and convenient maintenance etc . , so it is convenient to use it to design the control system 由于plc (可编程逻辑控制器)具有编程容易、通用性强、可靠性高、控制系统构成简单、维护方便等优点,用它来进行控制系统的设计很方便。
As a combination of automation technology , computer science technology and communication , programmable logic controller has been widely used in industry control including machine manufacture , chemical process etc for its high performance , low cost and high reliability in hard environment 可编程控制器是自动化技术、计算机技术,通讯技术等相结合的产物,由于其高性能,低成本和在恶劣环境中的高可靠性被广泛应用于工业控制领域。